INTRODUCTION The State of Ohio has issued more stringent discharge
limits for Mercury at all Wastewater Treatment Plants
within the State. The new permitted limit for the Clyde
Wastewater Treatment Plant is 2.7 Parts Per Trillion
(For comparison, a part per trillion (PPT) is equivalent
to a drop of water in a thousand swimming pools). This
new limit of 2.7 is below to the human health water
quality limit of 3.1 PPT.Since January of 2007 the Clyde Wastewater
Treatment Plant has averaged discharge levels at less
than 1.1 PPT and has not had a reading greater than the
Human Health Criteria.

Mercury Minimization Partnership of Clyde
(MMP)
The City of
Clyde
and the Wastewater Treatment Utility are required to
begin a Pollution Minimization Program by the Ohio
Environmental Protection Agency (EPA). This program will
take the form of the
Mercury Minimization Partnership of Clyde
in which the City hopes that all commercial and
industrial wastewater users will actively participate.
The program will be largely voluntary, however, the City
is required to begin this program therefore some aspects
will be required. The effectiveness and level of
participation in this partnership will determine how
many portions of the program will remain voluntary. At
present the City will be required to document the
progress of the partnership to the Ohio EPA as well as
the discharge limits at the Wastewater Treatment Plant.

Objective of the Partnership
The objective of the partnership is for all sanitary
users to identify mercury sources that are located
within the residence or the business establishment. Upon
identification of potential mercury sources the
following steps should be considered:

All mercury sources that are located that no
longer have use should be properly disposed
of.

Mercury sources that still are being used
should be eliminated if a viable
cost-effective alternative is presently
available.

Mercury sources that must continue to be
used within the business or residence should
be labeled and have a spill prevention plan
determined in case of accidents.

Mercury Spill Prevention Plan
information can be found at the following links:

14.
Unique, Potential Source: Non-Residential Sanitary Sewer
Users that cannot appropriately be classified into one
of the General Categories will be listed as a "Unique,
Potential Source" (Please note that all sanitary users
are considered potential source to some extent). As will
be the case with each category, the City will conduct
one-on-one surveys with each non-residential user to
determine possible mercury sources and potential mercury
free alternatives.

15.
Unknown, Potential Source: Non-Residential Sanitary
Sewer Users whose sewers use is not known from the
preliminary classification process will be listed as
"Unknown, Potential Source". The City will classify
these users during the one-on-one surveys or through
telephone surveys. All Users will eventually be
classified

The City of
Clyde has a Combined Sewer System
(CSS). It was originally designed to carry Sanitary
Sewage (consisting of domestic, commercial and
industrial wastewater) and storm water (surface drainage
from rainfall and snow melt) in a single pipe to a
treatment facility. During dry weather CSS's convey
domestic, commercial and industrial wastewater. In
periods of rainfall or snowmelt, total wastewater flow
may exceed the capacity of the CSS'S. When this occurs,
the CSS wasdesigned to
overflow directly to surface water bodies. In
Clyde there were three CSO’s that flowed
into Raccoon Creek. These over flows, called combined
sewer overflows (CSO’s) may have been a source of water
pollution in our community.

As part of the sanitary/storm sewer separation projects
here these CSO’s have been permanently closed and
sealed.This
created a hydraulic overload on the entire collection
and treatment systems.Due to the need to alleviate hydraulic stress on
these systems a CSO screening facility was constructed., When it becomes necessary the CSO facility
provides the collection system with hydraulic relief
while at the same time providing protection to the
community and environment by screening out potentially
harmful debris.

Because CSOs contain untreated domestic, commercial and
industrial wastes, as well as surface runoff, many
different types of contaminants may be present:
pathogens, suspended solids, nutrients, toxins, and
floatable matter. CSO's have been shown to be a major
contributor to use impairment and aesthetic degradation
of Raccoon Creek, and may contribute to health effects
when the population has contacts with this water after a
period of overflow or discharge.

On 26
April 1893
the State of Ohio Board of Health granted the City of CLYDE permission to discharge wastewaters in
to Raccoon Creek, but a great many things have changed
since then. Testing by Health Departments and the EPA
recognized that this discharge was a source of pollution
to the State's surface waters. The City of CLYDE built its first Wastewater Treatment
Lagoons early in the 1900's as a WPA project. The City
had grown and a new treatment plant was constructed in
1946. Additional capacity was needed and that plant was
expanded numerous times in the 1950's, and in 1972. The
old plant was torn down in 1985 and the present plant
was constructed. The old plant could only process 1.5
million gallons of wastewater per day (MGD); the present
plant was designed to process 4.9 MGD and has recently
processed as much as 7.2 MGD.

As the City rebuilds existing streets and new streets
are added, the storm and sanitary sewer systems are
separated. The storm water flows to the Creek and the
Sanitary wastewater now flows to the treatment plant.When the additional flow creates hydraulic
overloads on the system the CSO unit activates to
relieve this stress. The
City is taking a very proactive approach in continuing
the separation process and this will continue far in to
the future. Major construction is planned for this year,
the sewer separation began when the down town street
improvements took place.

If there would be questions and comments please call the
Wastewater Treatment plant at 547-9407 during business
hours of 7:00 AM and 4:00
PM.

Municipal Building | 222 North M

Municipal Building | 222 North Main Street | Clyde, Ohio 43410 | City of Clyde, Ohio